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BEGAUBERT. Paper-Feeding Machine.

Mar. 30,1880.

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2 ShetS ShBet 2. P. EGAUBERT. Paper-Feeding Machine.

No. 225,974 Patented Mar. 30,1880.

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N- PETERS, FHOTD'UTHOGHIPNER, WASHINGTON; [1.0.

tion of the paper-feeding apparatus.

FREDERIO EOAUBERT, OF NEW YORK, N. Y.

PAPER-FEEDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 225,974, dated March30, 1880.

Application filed September 1, 1879.

To all whom it may concern Be it known that I, FREDERIG ECAUBERT, of thecity and State of New York, have invented an Improvement in PaperFeeding Mechanism for Printing-Presses, 85a, of which the following is aspecification.

I make use of a table to support the pile of paper, said table having acounterpoise or lifting device and parallel-motion bars, so that thetable is raised bodily, and the top sheet of the pile occupiesa uniformposition. Aslidingfriction-pad or rubber buckles up the top sheet toseparate it from the others. A sheet'holder is lifted, the sheetflattens out, and in so doing is extended in between rollers thatdeliver the paper upon the feed-table to be taken by the gripers. Alaterally-actin g pusher adjusts the sheet 'to the proper place and theoperations are repeated.

In the drawings, Figure 1 is a vertical see- Fig. 2 is a plan view, andFig. 3 is a diagram representing a different arrangement of theparallel-motion bars.

The bed-plate a is provided with two standards, b b, the faces of whichare made with rack-teeth b for the pinions c c. that are upon across-shaft, c, that is supported by the table d.

60 are parallel-motion bars, pivoted together at 2. The lower ends ofthe bars 0 are pivoted to the standards I), and the upper ends areconnected by a cross-shaft, 3, upon which are rollers beneath the tabled. The upper ends of e are pivoted to the table (I, and the lower endshave a cross-shaft, 4, and rollers resting upon the bed-plate to. Theseparallel-motion bars open and close or swing as'the table is raised orlowered, and keep the top of the table and the pile of sheets carried bythe said table (1 parallel or level; and upon the shaft 0 is a groovedor band wheel, f, with a cord or strap, 6, attached thereto, and passingover a pulley,

v7, to a weight, g, (shown by dottedlines in Fig. 1,) which serves torevolve the said shaft 0, and, by the pinions c acting upon therackteeth, raise up the table (I and the pile of sheets thereon untilthey are stopped by either the sheet holder h or 7, hereinafterdescribed. Hence the top sheet of the pile is always at a certain level,regardless of the number of sheets in the pile below it.

I remark that the weight 9 must be sufficient to turn the shaft 0 andlift the table (Z and its contents.

It will be apparent that a spring may take the place of the weight g,and that equivalent devices may be employed for lifting the platformautomatically as the sheets are removed. W'hen there is not room for theparallel-motion bars beneath the table they may be at the sides of andabove the table, as illustrated in Fig. 3. In this case there must besuspended ways for the rollers at the back end of the table.

The cross-piece I) on b and the frame Z support the horizontal bar l,upon which the stock on of the rubber n slides.

The driving-shaft tis supported upon a suitable frame, and at the end isa disk, with a crank-pin, 27, and connecting-rod 8 to the stock m of therubber n, so as to reciprocate the same 011 the bar 1. The crank-pinshould be upon a radial slide, so as to vary the throw of the crank, andthe connecting-rod 8 should be variable in length, so as to correctlyadjust the stock m of the rubber and bring the rubber nearer to orfarther from the holder h, according to the thickness of the paper thatis being fed, because with thick paper the rubber should be farther fromthe holder than with thin paper, in order that the paper may be buckledor arched up freely, as hereinafter described.

The lever 0 is pivoted upon the stock m, and at its outer end it carriesone or more rubbers, n. A box or holder at the lower end of this lever 0receives into it a block or piece of leather, rubber, or equivalentmaterial, such as imitation rubber; and a screw, 10, is employed toclamp the block when in place. It is preferable to surround the rubberwith a layer of paper or similar material, to prevent its adhering tothe metal of the holder or box. There may be more than one of theserubbers, in'whieh case the lever 0 may carry a crossbar that has upon itthe boxes or holders for the rubbers n, and these should be adjustablesidewise, so as to act upon the unprinted portions of the sheet whenbeing fed for the second impression.

When the rubber stock is being moved in the direction of the arrow therubber, resting upon the surface of the paper, moves the top sheet alongand buckles or arch es it upward in the manner shown in Fig. 1, at whichtime the sheet-holder h is acting to prevent the forward end of thesheet moving; but as soon as that holder h is raised the sheet flattensout, and its edge is moved forward in between the rollers T1", and bythem delivered upon the inclined feed-board s, as hereinafter described,the rollers being revolved constantly by suitable means, such as theband-wheel and belt12.

If the table d is arched upwardly to a slight extent, it will aid incausing the top sheet of paper to arch upwardly when acted upon by therubber.

It is necessary to lift the rubber at before it moves back. For thispurpose the stationary collar or stop 8 is provided upon the bar l,

against which the end of the lifting-fork t is brought by the movementof the rubber stock and held, while the further movement of the stockand lever causes the lifting-fork to pass between the tail end of thelever and the stock, depressing that end and lifting the other end andthe rubbers. The ends of the fork act as springs to hold the parts inposition, and there is also a guidepin at 1.3 and a slot in t.

Then the stock m is moved back the rubber lever is liberated near theend of the movement by the stationary collar 14 upon the bar I arrestingthe movement of the fork t, while the lever and stock continue to move,so as to pass away from the spring end of the fork and liberate thelever. The lever 0, running under the spring 15, bends the same, and assoon as the lever is liberated the spring throws the rubber down on thesurface of the paper and holds it firmly until it has moved forward andcarried the paper withit; then the rubberholder moves away from beneaththe spring, to lessen the pressure and prevent the same moving more thanthe top sheet.

The sheet-holder It has to be raised and held up while the rubberbuckles up the sheet and draws the end from beneath k. This holder isbrought down to retain the next sheet, after which the holder h israised. These motions are given by the following devices or similarmechanism for accomplishing the same purpose:

The holder it has a sliding stock in a vertical slide beneath'the bar I.It is drawn up by the spring 16. The rod to is connected with the rubberstock m and moves back and forth, and the cam-blade 18 on said rod toacts upon the upper end of the stock of the holder 70, forcing the samedown after the back end of the top sheet of paper has been drawn frombeneath it.

The cam-lever c is placed at right angles to the paper holder h, and itshorizontal end serves to raise or lower the holder h. Its vertical camend is acted upon by a stud or roller, 28, upon the slide-bar o, theother end of 1) being adjustably connected to the rubber stock, so thatafter said stock at and bar 1) have moved, as aforesaid, the stud 28reaches the lever 11 and lifts the paper-holder h, and the sheetflattens out from its buckled condition, and its end passes in betweenthe rollers 1' r and is drawn through and slides down the feed-board s.

The devices that operate upon the holders h and k are made and placed soas to act alter= nately and liberate the back part of the sheet whilethe front part is being held, and the rubber is moved forward, carryingwith itthe back portion of the sheet; then the holder comes down at theback part upon the next sheet while the front holder is raised and thetop sheet is passed away. In all cases the holders determine the placeto which the top sheet in the pileis raised. If this feed-board wereflat, the action of currents of air might prevent the sheet assuming thecorrect position or remaining in place. I make the'feed-board hollow orcurved, so that as the sheet falls upon the same there will be space forthe air to escape laterally after the top and bottom ends rest upon thefeed-board, and any inequalities will flatten out as the sheet sinksinto the curved form corresponding to the board, and the sheet is notliable to be blown out of place. To prevent the tendency of the upperend of the sheet to continue to move after the lower end is arrested bythe griper-stops s 1 use a guard wire or rod, 8 above the feedboard, andbeneath this the sheet slides as it passes away from the rollers.

Before the gripers take the paper it is adjusted laterally by the fenceor fences 'w, to which a movement is given by the lever 20 and cam 21,so that the fence is brought up against one of the edges of the paper,and will move the sheet in a lateral direction sufficiently to bringeach sheet into the same position for the gripers, regardless of anyslight inequality in the position of the sheet upon the table 8. Theremay be a similar fence or fences at the opposite edge of the sheet, toinsure its proper position against all the griper-stops and prevent thesheet remaining in a diagonal position.

The spring 23, or similar device, moves the fence back when the camrelieves the lever.

It will be apparent that there may be more than one of the longitudinalslide-bars Z, with the rubber stock, levers, and rubbers, and also thatthe axis 30 of the lever 0 may be a rod to which the lever is connected,and such rod may project endwise and receive upon it two or more leversand rubbers, so that all the rubbers are moved together by this axialrod.

When this feeding device is used with a ruling-machine the pair ofrollers 4' 4" should be farther away from the front sheet-holder thanshown in Fig. 1. In this case the rollers will not move as fast as therubber; hence the rubber can bring forward a second sheet after thefront holder has been lowered and then lifted, and the front edge of thesecond sheet will overtake, or nearly so, the rear edge of the firstsheet as it passes between the rollers 'r r.

Upon the holder that contains the rubber n I attach a tube, in which isa sliding bolt, 25. The lower end of this bolt rests upon the sheet ofpaper, and in the table 01, I provide a slot and a stop-motion slide, (1to operate the driving-belt or a clutch, so that when th'elast .sheet ofpaper has been removed the bolt will drop and engage the stop-motionslide, and the movement of the rubber will operate the stop-motion andprevent the further running of the machine.

I claim as my invention- 1. The combination, in a paper-feeding machine,of two paper-holders, mechanism for holding down and lifting thepaper-holders alternately, a reciprocating rubber acting between thepaper-holders, and mechanism to actuate the rubber, as set forth, so asto draw the sheet from beneath the back holder when that is raised,buckle up the sheet, and then pass the sheet off beneath the frontholder when it is raised, substantially as set forth.

2. The combination, in a paper-feeding machine, of two holders,mechanism for actuating the same alternately, a reciprocating rubber,means for moving the same, as specified, and a pair of feeding-rollersthat carry the sheet away from beneath the front holder when raised,substantially as set forth.

3. The combination, with the paper-holding table, of the racks b pmionsc, a liftin g-weight, and parallel-motion bars 6 e, to raise the tableand paper and maintain the parallel position of the sheets,substantially as set forth.

4. The rubber n in a case or receiver, in combination with the lever 0,rubber stock m, supporting-bar l, and mechanism for imparting areciprocating motion and for raising the rubber on the backwardmovement, substantially as set forth.

5. The combination, with the rubber and its lever and stock, of asliding fork, t, and stops 8 and 14, substantially as and for thepurposes set forth.

6. The combination, with the paper-holder 5 d k and rubber n, of thesliding stock m, rod u, cam-blade l8, and means for raising the holderk, as and for the purposes set forth.

7. The paper-holder h, sliding vertically, in combination with therubber n, the lever o, and the slide-bar 41, substantially as set forth.

8. The feed-board s, placed at an inclination, and having a hollowcentral portion, in combination with the sheet-supplying device and thegriper-stops, substantially as set forth.

9. In combination with the inclined feedboard 8 and griper-stops 8 thefence w at one side of the sheet, and mechanism, substantially as setforth, for giving to the fence a lateral movement, as specified.

10. The combination, with the reciprocating rubber in a paper-feedingmechanism, of a drop-bolt to rest upon the paper, but to operate astop-motion when the paper is exhausted, substantially as set forth.

11. The combination, in the paper-feed, of the feed-board s, placed atan inclination, and having a hollow or curved central portion, and theguard-rod 8 above the table, the rollers 1" 1", and stops, substantiallyas set forth.

12. The combination, in a paper-feeding mechanism, of a rubber, meansfor reciprocating the rubber and for lifting it upon the backwardmovement, and a spring that is strained by the backward movement of therubber and acts to force the rubber to the surface of the paper beforethe rubber moves forward, for the purposes and substantially asspecified.

Signed by me this 26th day of August, A. D. 1879.

FREDERIO EOAUBERT.

Witnesses:

HAROLD SERRELL, WILLIAM G. Mo'rT.

